Gunsmithing 101 but it's entertaining. Mounting a Leupold Delta Point Pro red dot optic on a Smith & Wesson M&P10 mm C.O.R.E. (Competition Optics Ready Equipment) slide.
The pistol comes with a number of polymer "adapter" plates (~0.04" thick) to accommodate various manufacturer optic fastener mounting patterns; the Leupold is steel plate 3x (0.125 ") thicker than the polymer plates. I substituted the hex head fasteners for torx drive fasteners, which I do routinely anytime I get the opportunity. Used a dab of blue Loctite on the fasteners and torqued to 25 in-lbs; I prefer to use the torque tool which has its highest range closest to the fastener specification, a 0-40 in-lb range Snap-On Qdriver4 model in this instance. The factory tall sights are useless with the Leupold DPP optic, as they are too short to co-witness thru the optic window.
The pistol comes with a number of polymer "adapter" plates (~0.04" thick) to accommodate various manufacturer optic fastener mounting patterns; the Leupold is steel plate 3x (0.125 ") thicker than the polymer plates. I substituted the hex head fasteners for torx drive fasteners, which I do routinely anytime I get the opportunity. Used a dab of blue Loctite on the fasteners and torqued to 25 in-lbs; I prefer to use the torque tool which has its highest range closest to the fastener specification, a 0-40 in-lb range Snap-On Qdriver4 model in this instance. The factory tall sights are useless with the Leupold DPP optic, as they are too short to co-witness thru the optic window.
Last edited: